Two New Cluster Ions, Ga[GaH3](4)(5-) with a Neopentane Structure in Rb8Ga5H15 and [GaH2](n)(n-) with a Polyethylene Structure in Rb-n(GaH2)(n), Represent a New Class of Compounds with Direct Ga-Ga Bonds Mimicking Common Hydrocarbons

作者：Fahlquist Henrik; Noreus Dag^*; Callear Samantha; David William I F; Hauback Bjorn C

来源：Journal of the American Chemical Society, 2011, 133(37): 14574-14577.

DOI：10.1021/ja2067687

The first examples of a new class of gallium hydride clusters with direct Ga-Ga bonds and common hydrocarbon structures are reported. Neutron powder diffraction was used to find a Ga[GaH3](4)(5-) cluster ion with a neopentane structure in a novel cubic structure type of Rb8Ga5H15. Another cluster ion with a polyethylene structure, [GaH2](n)(n-), was found in a second novel (RbGaH2)(n) hydride. These hydrocarbon-like clusters in gallium hydride materials have significant implications for the discovery of hydrides for hydrogen storage as well as for interesting electronic properties.

• 出版日期2011-9-21